On Wed, 2004-12-29 at 13:42 -0600, AdabalaP@xxxxxxxxxxxxx wrote: > I get a message at the time boot from ACPI, which says some thing like > this; > ACPI cut-off age=CCYY (~1997) try using ACPI=force > > I tried giving the kernel parameter ACPI=force, but his still pop's up ? > ACPI vintage is now a kernel parameter. Are you sure that your pre-1997 machine supports ACPI to begin with? > Thanks. > > > > > Ed Hill > <ed@xxxxxxx> To: For users of Fedora Core releases <fedora-list@xxxxxxxxxx> > Sent by: cc: > fedora-list-bounces Subject: Re: apm vs. acpi > @redhat.com > > > 12/29/2004 01:15 PM > Please respond to > ed; Please respond > to For users of > Fedora Core > releases > > > > > > > On Wed, 2004-12-29 at 08:48 -1000, Amy M wrote: > > All things considered, this fedora-list has become perhaps one of the > > best forums to learn Linux. Our sincere thanks to those who are > > gracious enough to donate their time answering questions that sometimes > > may seem ridiculous. > > > > My question now is: From what I have read, it appears that if I want to > > do suspend to ram, I have to forgo acpi and use apm. Performance-wise, > > would anyone care to comment on the pros and cons of acpi vis-a-vis > > apm? Thanks again. > > Hi Amy, > > I can only relate my FC kernel-2.6 experiences for one laptop, a > ThinkPad A22p (PIII-900) and they are: > > - with very recent kernels (eg. 2.6.9-1.681_FC3) both APM > and ACPI suspend-to-RAM work > - with both I often need to unload and then re-load the > sound kernel modules > - APM: > - uses *very* little power when suspended to RAM (lasts > for many days starting from a full charge) > - can occasionally have problems with pcmcia (even when > all cards are removed) so I usually use: > "/etc/init.d/pcmcia stop ; apm -s" > and then restart pcmcia after wake-up with: > "/etc/init.d/pcmcia start" > - results in lockups about once every 40--50 suspend- > resume cycles > - ACPI: > - has no apparent problems with pcmcia > - experienced no lockups (in about ~60 cycles) > - uses a *LOT* (perhaps as much as 10X) more battery > power while suspended to RAM > - suspends and resumes very quickly > - routinely gives a kernel error on wakeup saying > something about interruptable_sleep() but they seem > to be harmless > > Having done many hundreds of suspend-resume cycles using both APM and > ACPI, I've decided to stick with APM to reduce the battery usage. > > Ed > > -- > Edward H. Hill III, PhD > office: MIT Dept. of EAPS; Rm 54-1424; 77 Massachusetts Ave. > Cambridge, MA 02139-4307 > emails: eh3@xxxxxxx ed@xxxxxxx > URLs: http://web.mit.edu/eh3/ http://eh3.com/ > phone: 617-253-0098 > fax: 617-253-4464 > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > ________________________________________________________________________ Total Quality Management - A Commitment to Excellence http://www.TQMcube.com
